Chain.



PATENTBD SEPT. 24, 1907.

A. B. TAYLOR.

CHAIN.

APPLIoATIoN FILED JUNE 2a. 1905.

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llllllllllllillllll( [llllllllillllillh me/who@ ,Arthur B. Taylor -ijlmlilillllIIIIIHIIIIHIIII @wif/neogeo -W PATENTED SEPT. 24, 1907. A. B. TAYLOR.

CHAIN.

APPLIOATION FILED JUNE 2a. 1905.

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. @www1/bolo -Arthur B. Taylor llm/ www H W 1,' UNITED STATES PATENT. oEEIoE.

Alt'lfll Ult l5. TAYLOR, 0F INDIANAPOLIS, INDIANA.

CHAIN.

S'pecication of Letters Patent.

'Patented sept. 24, 1907.

Application filed J une 28,1905. Serial No. 267,379

.'lo all whom it may concern:

Be it known that I, ARTHUR B. TAYLOR, acitizen of the United States, residingat Indianapolis, lin the the chain wears, its pitch increases and incourse of v, each endwith a perforation l0 thelarger portion ofv time the chain no longer fits the" sprocket wheel for which it is designed. Y y

The object of my present invention is to produce a pitch chain in which the wear-which may affect the pitch may be reduced to a minimum and in which the worn part may be readily replaced to bring the parts to initial pitch withoutrdismantling the chain.

The accompanying drawings illustrate my invention;

Figure 1 is a section online l 1 of Fig 2 and .illustrates a chain embodying bue form of invention; Fig. 2 a section on line 2 2 of Fig. -1; Fig. 3 a section on line 3 3 of Fig. 2. Fig. 4 a view similar to Fig. l showing another form of my inventionsaid view being a section on line 4 4 of Fig. 5; Fig. 5 a section on' line 5 5.0i Fig. 4; Fig. 6 a section on line 6 G of Fig. 5; Fig. 7 an isometric perspective view oithe intermediate link shown in Fig. 1; Fig. 8 a similar view of a portion of one of the'lend links shownin Fig.I 1:'witl1 both cross barsin position; Fig. 9 a sixiiilarview showing the manner of assembling the various parts of the chain, and Figs. 10 and V11 sectional views of modifications.`

In Figs. l, 2, 3,' 7, 8 and 9, ofthe drawings, 10 10 indicate-a pair of side bars each of which is perforated at whichl has an angular dimensionsomewhat greater than 180 degrees. This perforation 10l is supplemented, on the side next its center of curvatura'. b'y a somewhat smaller perforation 10, said perforation Ill/ being adapted to receive the ensmalled end .11 of a cross bar ll.,- said ensmalled end being a ,trierlonger than the thickness of the side bars 1Q' so that, by compression,

`the outer end of the portiolijllfinay be swaged over into the slightly enlarged outer. end of the perforation 10, as indicated at s in Fig. 1. Each cross bar l11 is provided with an axial, nearly semicylindrical bore B for' Aa purpose which will appear. 'i

In order to assemble thelchain, two cross bars 11 are secured to a side bar 10 by swaging the outer ends of the the distance between the shoulders formed by the en-' smalledends 11 at each endof'the cross bar 111e The 'other'sid-e bar 10 is then slipped over 'the opposite` ensmalledends 11 of the cross bars-11 and secured In `position by swaging` down said ends 11, -thus producing the structure shown in Fig. 7. This completed link (hereinafter called the inner link) being in a form which needs no disassemblement in the future.

To complete the chain a side bar 15 is first provided with a pair of cross bars 16 each of said cross bars having at each endan ensmalled end 16 which is adapted to be inserted at a perforation 15 formed at each end, the..

end 16 being swaged down into the perforation in the manner already described. The perforation l5 is supplemented at its axis by'a semicylindrical perforal tion 15 which is slightly larger than the diameter of the boreB of the cross bar 11 and the similar bore B of cross bar 16. When the parts have been thus assem bled, as shown in Fig. 8, a cross bar 16 is projected through the alined perforations 10l at one end of the completed inner link, as shown in Fig. 9. Another link similar to that shown in Fig. 7 is then slipped over each of the end cross bars 16, and a second side bar 15 then slipped over the ensmalled ends 16 of each pair of said cross bars 16 and said ends are swaged downto hold the parts in permanent' position. Across pin or compression member 20 is then slipped through each bore B and the ends slightly headed to prevent transverse displacement, a washer 21being slipped under each head .if desired. By this construction it will be noticed that each cross bar is rigidly attached to its pair of side bars and swings therewith so that' there is no frictional wear between the said-side vbars and thev cross bars, but that the entire wear comes between 4 the cross bars and the crossV pin. As a consequence, the

wear may be readily compensatedby removing of the worn cross pins and slipping'in new pins of the same size as the original or, if necessary, a few thousandths larger. i i

The cross bars l1 and 16 may be hardened if desired or a construction such as that shown in Figs. 4, 5, and 6 provided where hardened wearing surfaces are deemed necessary. Inl these'figures theintermediate links are composed of side bars 30'and cross bars 31, each cross bar having an axial groove 31, the construction being such as to receive a' substantially semiannular bushing 32 vwhich is similarly provided with a peripheral longitudinal rib 32, adapted to fit in the groove 31.- The connecting outside links are sinn'- larly formed from side bars 35 and cross bars 36, each of which is provided with a bore 31-3l adapted to receive one of the bushings 32-324. The same cross pin 20 is to be inserted between the two bushings 32. p

The strength of a chain such as that shown in Fig. I will probably be dependent upon the combined shearing strength of the ensmalled ends 16 and pin 20, and to produce a stronger chain with the same size parte the construction shown' in Fig. IO'Kmay be adopted.

n Here the parts 10, 16-16/, 12 and 20 are the same as shown in Fig. 1. The cross pins 11, however, have their ends provided with ensmalled extensions 11"- which project through the side bars 15 and in order to permit this the" side bars are suitably perforated as shown in Fig. 10, the ensmalled extensions 11 serving to supportV the portions of pin 20 which project beyond bar 10, and thus serving to'strengthen, through pin 20, the ensmalled portions 16 of bar 16.

In Fig. 11 I show a modification in which the two side bars 50 of the inner lilik are connected at each end by a tubular bushing 51 and mounted'within each of these bushings is a. cross bar 52 which is nearly semicylindrical and provided with 'an axial groove 53 for the reception of the cross-spin 54. The cross bar 52 fits snugly .within the bushing and is of a length substantially equal to the length of th'e bushing. The side links 55 are connected at each end by a nearly semicylindrical cross bar 56 which also has an axial groove -53 adapted to receive the'pin 54. The cross bar 56, however, is shouldered at each end and rigidly attached to the 4side bars 55 either by way of riveting as shown, or any other means. In this form, under means which will not permit transverse displacement' or disassemblement and will not permit swinging of the side bars on the cross bars, yet the construction is such that by mere removal of the cross pin and substitution of new ones all wear may be readily compeny sated and the chain easily brought back to its initial and proper length. The cross pins do not serve to hold any parts of the chain in transverse placement.

It is to be understood that, while I have described a preferable structure, in which the side bars of the inner links are riveted to the cross bars, the 'side bars of the inner links may be merely slipped over the ends of their cross bars or pressed thereon, without departing from my invention.

I claim as my invention:

1. A chain composed of a plurality of successive pairs of lin'ks, the inner 'l--nk of a pair comprising two cross 'bars andan intermediate connect-ing member, and the outer l-lnk of a pair comprising two cross,bars each passing through an inner link between the two cross bars thereof, and also comprising a pair of side bars which connect and are permanently secured to the cross -ba-rs of said outer li-nk, the adjacent faces of each pair of cross bars being formed to coperate with a transversely-removable intermediate compression member, and the said transversely removable compression member for each pair o't cross bars, 'said transversely removable compression member being at all times accessible at one end without dismemberlng the flinke.

2. A chain composed of a plural-ity of successive pairs of links, the inner link of a pair comprising two cross bars and an intermediate connecting member, and the outer link of a pair vcomprising' two cross bars each passing through an inner link -between the two cross `bars thereof, and also comprising a pair of side bars which connect and are .permanently secured to lthe cross bars of said outerlink, the adjacent faces of each pair of cross bars being formed to coperate with a transversely-removable intermediate compression member, said transversely removable compression member for each pair of cross bars the` said compression member for each pnlr of cross bars, und n tulmlnr rollcr joul'naled on each pulr o! cross bars, said transversely rc movable compression member being nt all tlmes accessible at one end without dlsmemberlng the Ilnks.

3. A chain composed of n plurnllty of successive pulrs of links, the inner link of n pulr comprising two side bars und two cross bnrs permanently connected together, and the outer link of a palr comprlsing two slde bars and two cross bars also permanently connected together, the cross hars of the outer link each passing through the side burn ol' un inner link between the cross bars thereof, the adjacent faces of euch pair of cross bars being formed to coperate with n transversely-removable intermediatev compress-lon member, said transversely removable compression member for each pair of cross bars and the said compression memher for each pair ofcross bars, sald transversely removable compression member being at all times accessible at one end without dismemberlng the links.

4. A chain composed of a plurality of successive pairs of links, the inner link of a pair comprising two side bars and two cross bars permanently connected together, and the outer link ot u pair comprising two side bars and two cross bars also permanently connected together, the cross bnrs of the outer link each passing through the side bars ot an inner link between the cross bars thereof, the adjacent faces of each pair of cross bars being grooved to receive a bushing member each of which is formed to coperate wit-h an intermediate transversely-removable compression member, such bushing members and the said compression member for each pair of cross bars, said transversely removable compression member being ot all times accessible at one end without dlsmembering the links.

5. Aachaln composed of a plurality o! successive pairs of links,vthe inner llnk of a pair comprising two side bnl-s and two cross bars permanently connected together, and the outer link of a plicomprlsing two side bars and two cross bars also 4permanently connected together, the cross bars ot the outer llnk each passing through the side bars of an inner link vbetween the cross bars thereof, the adjacent fn'ces of each pair o'f cross bars being formed to coperatc with a transversely-removable intermediate compression member, the said compression member for each pair of cross bars, and a tubular roller journaled on each pair of cross bars, said transversely removable compression mcml ber being at all times accessible at one end without dls member'ing the links.

6. A chain composed oft a plurality of successive pairs of links, the inner link of a pair comprising two slde bars and two cross bars permanently connected together, and. the outer link of a pair comprising two side bars and two cross bars'also permanentlyLk connected together, the cross bars et the outer link each passing through the side bars of an inner link between 'the cross Vbars thereof, the adjacent faces of each pair of cross bars being grooved to receive a bushing member 'each of which is formed to copernte with an intermediate transverselyremovable compression niember, such 'bushing mem-bers, -t'he said compression member tor each pa-lr of cross bars, 'and -a tubular roller journaled on each pair of cross bars, said transversely removable compression member being at all times accessible ut one end without dismembering the links.

7. chain composed of u plurality ot successive pairs of links, t-he 'inner 'link ot a .pair comprising two cross bars and an intermediate connecting member, and the outer llnk of -a pair comprising 4two cross bars having shouldered ends and each passing through un inner link between the two cross liars thereof, and also comprising a pair of side bars riveted to the shouidercd ends of their cross bars, the adjacent faces of each pair of cross bars being formed to co operate w-lth a transversely-removable intermediate compression member, and said compression member for euch pair ot cross-bars, said transversely removable compression member bei-ng -at all 'times accessible at one end without dismembenlng the links.

8. A Achaln composed of -a plurality of successive pairs of links, the inner link of u pair comprising two cross bars and an intermediate connecting member, and the outer llnk or a pair comprising two cross bars having shouldered ends and each passing through an inner link between the two cross bars thereof, and also comprising a pair of side bars soepe riveted to the shouldered ends of their cross bars, the adjacent faces of each pair of cross bars being formed to rooperate with a transversely-removable intermediate, compression member, said compression member for each pair of cross bars, and a tubular roller journaled on each pair of cross bars, said transversely yremovable compression member being at all times accessible at one end without dismembering the links.

9. A chain comprising the following elements two links each comprising two perforated side bars and two shouldered cross bars riveted to their side bars and two other intermediate links each comprising two perforated side bars and two shouldered cross bars riveted thereto, the cross hars of the last mentioned links passing through the side bars of the-first mentioned links between the cross bars thereof and the adjacent faces of each pair of cross bars being formed to coperate with an intermediate transversely-removable compression member, and such compres-4 sion member for each pair of cross bars, said transversely' removable compression member being at all times accessible at one end without dismembering the links.

10. A chain comprising the following elements: two

links each comprising two perforated side bars and vtwo shouldered cross bars riveted to their iside bars, and two other intermediate links each comprising two perforated side bars and two shouldered cross bars riveted thereto, the cross bars of the last mentioned links passing through the side bars of the first mentioned links between the cross bars thereof and the adjacent faces of each pair of cross' bars being formed to coperate with an intermediate trans verseiy removable compression member, such compression member for each pair of cross bars, and a tubular roller journaled on each pair of cross bars between the side bars of the first mentioned links, said transversely removable compression member being at all times accessible at one end without dismembering the links.

In witness whereof, I, have hereunto set my hand and seal at Indianapolis, Indiana, this 23d d ay of June, A. D. one thousand nine hundred and dve.

Witnesses: ARTHUR M. Hoon, JAMES A. WALSH. 

